20165460

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^3$

素因数の和:83

約数の個数: 144

約数和(自身を含む): 69330240

約数和(自身を除く): 49164780

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 361, 380, 399, 420, 490, 532, 570, 588, 665, 722, 735, 798, 931, 980, 1083, 1140, 1330, 1444, 1470, 1596, 1805, 1862, 1995, 2166, 2527, 2660, 2793, 2940, 3610, 3724, 3990, 4332, 4655, 5054, 5415, 5586, 6859, 7220, 7581, 7980, 9310, 10108, 10830, 11172, 12635, 13718, 13965, 15162, 17689, 18620, 20577, 21660, 25270, 27436, 27930, 30324, 34295, 35378, 37905, 41154, 48013, 50540, 53067, 55860, 68590, 70756, 75810, 82308, 88445, 96026, 102885, 106134, 137180, 144039, 151620, 176890, 192052, 205770, 212268, 240065, 265335, 288078, 336091, 353780, 411540, 480130, 530670, 576156, 672182, 720195, 960260, 1008273, 1061340, 1344364, 1440390, 1680455, 2016546, 2880780, 3360910, 4033092, 5041365, 6721820, 10082730, 20165460]

約数ペア:

[(1, 20165460), (2, 10082730), (3, 6721820), (4, 5041365), (5, 4033092), (6, 3360910), (7, 2880780), (10, 2016546), (12, 1680455), (14, 1440390), (15, 1344364), (19, 1061340), (20, 1008273), (21, 960260), (28, 720195), (30, 672182), (35, 576156), (38, 530670), (42, 480130), (49, 411540), (57, 353780), (60, 336091), (70, 288078), (76, 265335), (84, 240065), (95, 212268), (98, 205770), (105, 192052), (114, 176890), (133, 151620), (140, 144039), (147, 137180), (190, 106134), (196, 102885), (210, 96026), (228, 88445), (245, 82308), (266, 75810), (285, 70756), (294, 68590), (361, 55860), (380, 53067), (399, 50540), (420, 48013), (490, 41154), (532, 37905), (570, 35378), (588, 34295), (665, 30324), (722, 27930), (735, 27436), (798, 25270), (931, 21660), (980, 20577), (1083, 18620), (1140, 17689), (1330, 15162), (1444, 13965), (1470, 13718), (1596, 12635), (1805, 11172), (1862, 10830), (1995, 10108), (2166, 9310), (2527, 7980), (2660, 7581), (2793, 7220), (2940, 6859), (3610, 5586), (3724, 5415), (3990, 5054), (4332, 4655)]